2166126043 has 32 divisors (see below), whose sum is σ = 2390204160. Its totient is φ = 1955266560.

The previous prime is 2166126037. The next prime is 2166126049. The reversal of 2166126043 is 3406216612.

2166126043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2166126037) and next prime (2166126049).

It is not a de Polignac number, because 2166126043 - 2²⁵ = 2132571611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2166125996 and 2166126014.

It is not an unprimeable number, because it can be changed into a prime (2166126049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11223355 + ... + 11223547.

It is an arithmetic number, because the mean of its divisors is an integer number (74693880).

Almost surely, 2^2166126043 is an apocalyptic number.

2166126043 is a deficient number, since it is larger than the sum of its proper divisors (224078117).

2166126043 is a wasteful number, since it uses less digits than its factorization.

2166126043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2166126043 is about 46541.6592205306. The cubic root of 2166126043 is about 1293.8817123467.

The spelling of 2166126043 in words is "two billion, one hundred sixty-six million, one hundred twenty-six thousand, forty-three".